Amy Winehouse Walks Barefoot in London Wearing Only Bra, Jeans

Oh, no, no, no.

Troubled "Rehab" singer Amy Winehouse took a barefoot walk around chilly East London at 5:40 a.m. on Sunday, while wearing only a bra and jeans.

Click here for a pic

Winehouse, 24, had been partying at a friend's house before she was spotted muttering on the cold streets, the London Sun reported in Monday's editions.

"Amy came out and started stumbling around," one onlooker told the paper. "She popped her head over the fence like she was looking for something. "It was freezing, and she had no shoes and just a red bra," the onlooker added. "She was mumbling something incomprehensible. It wasn't the behavior of someone in the right state of mind."

Winehouse's representative told The Sun that the British R&B singer had been awakened by a sound and simply was out looking for what had caused it.

"Amy had been asleep and heard a noise," the representative said. "She went outside to investigate. She didn't realize the time."

Click here for the full New York Post report